Unblocking wellbores

A method comprising:

• receiving a wellbore tool by a restricted wellbore;
• extending an expandable tubular from the wellbore tool towards a wellbore restriction;
• expanding the expandable tubular within the wellbore restriction or downhole of the wellbore restriction;
• and
• opening a flow passage within the wellbore responsive to expanding the expandable tubular.

A wellbore system comprising:

• a restricted wellbore;
• and
• a wellbore tool within the restricted wellbore, the wellbore tool comprising:
• a housing;
• an expandable tubular longitudinally extendable from the housing, the expandable tubular configured to expand to a diameter equal to an internal surface of a wellbore, the expandable tubular separable from the wellbore tool after the expandable tubular is expanded;
• an expander comprising an inflatable bladder configured to expand the expandable tubular;
• and
• a sensor configured to detect a presence of a wellbore obstruction proximal to the tool.